Water may not be flowing through the Manitowoc Indigo series ice machine due to external issues such as low ambient temperatures, water pressure drops, or the water supply being turned off at certain times. Additionally, improper installation, refrigeration system failures, or electrical component malfunctions could also cause the issue. Checking external causes and ensuring proper installation and system operation is necessary to diagnose the problem.

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Summary of Contents for Manitowoc indigo series

Page 1 Indigo™ Series Air/Water/Remote Condenser Ice Machines Technician’s Handbook Part Number STH025 11/16...
Page 3: Safety Notices
Safety Notices Read these precautions to prevent personal injury: • Read this manual thoroughly before operating, installing or performing maintenance on the equipment. Failure to follow instructions in this manual can cause property damage, injury or death. • Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.
Page 4 Warning Follow these electrical requirements during installation of this equipment. • All field wiring must conform to all applicable codes of the authority having jurisdiction. It is the responsibility of the end user to provide the disconnect means to satisfy local codes. Refer to rating plate for proper voltage.
Page 5 Warning Follow these precautions to prevent personal injury during installation of this equipment: • Installation must comply with all applicable equipment fire and health codes with the authority having jurisdiction. • To avoid instability the installation area must be capable of supporting the combined weight of the equipment and product.
Page 6 Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment. • Refer to nameplate to identify the type of refrigerant in your equipment. • Only trained and qualified personnel aware of the dangers are allowed to work on the equipment. •...
Page 7 Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment. • Objects placed or dropped in the bin can affect human health and safety. Locate and remove any objects immediately. • Never use sharp objects or tools to remove ice or frost.
Page 8 Warning Follow these precautions to prevent personal injury during use and maintenance of this equipment: • It is the responsibility of the equipment owner to perform a Personal Protective Equipment Hazard Assessment to ensure adequate protection during maintenance procedures. • Do Not Store Or Use Gasoline Or Other Flammable Vapors Or Liquids In The Vicinity Of This Or Any Other...
Page 9: Table Of Contents
Remote Condenser . . . . . . . . . . . . . . . . . . . . . . . . 27 Remote Ice Machine Usage with Non-Manitowoc Multi-Circuit Condensers .
Page 10 Operation Control Panel Features . . . . . . . . . . . . . . . . . . . . . . . . 55 Buttons .
Page 11 Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Data History .
Page 12 Troubleshooting By Symptom . . . . . . . . . . . . . . . 119 Reset To Factory Defaults . . . . . . . . . . . . . . . . . 120 Symptom #1 Ice Machine Will Not Run .
Page 13 Refrigerant Recovery/Evacuation . . . . . . . . . . . . 205 Self-Contained Model Procedure . . . . . . . . . . 205 Remote Condenser Model Procedure .
Page 14 Diagrams Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267 Wiring Diagram Legend .
Page 15: General Information
General Information How to Read a Model Number HEAD SECTIONS Part Number STH025 11/16...
Page 16: Ice Cube Sizes
2.86 x 2.86 x 2.22 cm 2.22 x 2.22 x2.22 cm 0.95 x 2.86 x 2.22 cm Warning All Manitowoc ice machines require the ice storage system (bin, dispenser, etc.) to incorporate an ice deflector. Prior to using a non-Manitowoc ice storage system...
Page 17: Model Numbers
Model Numbers AIR-WATER-REMOTE CONDENSER MODELS Self-Contained Self-Contained Remote Air-Cooled Water-Cooled ID0302A ID0303W ---- IY0304A IY0305W ---- ID0322A ID0323W ---- IY0324A IY0325W ---- ID0452A D0453W ---- IY0454A IY0455W ---- IR0500A IR0501W IR0590N ID0502A ID0503W ID0592N IY0504A IY0505W IY0594N IR0520A IR0521W ---- ID0522A ID0523W ----...
Page 18: Ice Machine Warranty Information
K = Korean model. J = Japan model HP = High Pressure Water Regulating Valve - I0450/I0500 Water Cooled Condenser models Ice Machine Warranty Information For warranty information visit: http://www.manitowocice.com/Service/Warranty • Warranty Verification • Warranty Registration • View and download a copy of the warranty Owner Warranty Registration Card Warranty coverage begins the day the ice machine is installed.
Page 19: Luminice® Ii
LuminIce® II The LuminIce® growth inhibitor recirculates the air in the ice machine foodzone over a UV bulb. This process will inhibit the growth of common micro-organisms on all exposed foodzone surfaces. • LuminIce® bulbs require replacement on a yearly basis.
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Page 21: Installation
Installation Warning PERSONAL INJURY POTENTIAL Remove all ice machine panels before lifting. Caution The ice machine head section must be protected if it will be subjected to temperatures below 32°F (0°C). Failure caused by exposure to freezing temperatures is not covered by the warranty. See “Removal from Service/Winterization”...
Page 22: Location Of Ice Machine
Location of Ice Machine The location selected for the ice machine must meet the following criteria. If any of these criteria are not met, select another location. • The location must be free of airborne and other contaminants. • Self contained air and water cooled - The air temperature must be at least 35°F (1.6°C), but must not exceed 110°F (43.4°C).
Page 23: Clearance Requirements
Clearance Requirements AIR, WATER, REMOTE CONDENSER MODELS Self-Contained Self-Contained I0300 Air-Cooled Water-Cooled Top/Sides 16" (40.6 cm) 8" (20.3 cm) Back 5" (12.7 cm) 5" (12.7 cm) I0450 - I0500 I0600 -I0606 Self-Contained Water-Cooled and I0850 - I0906 Air-Cooled Remote I1000 - I1106 Top/Sides 8"...
Page 24: Ice Machine Heat Of Rejection
Ice Machine Heat of Rejection Series Ice Heat of Rejection Machine Air Conditioning* Peak I0300 4600 5450 I0320 3300 4500 I0450 5400 6300 I0500 6100 6900 I0520 5400 6300 I0600/I0606 9000 13900 I0850 13000 16000 I0906 12700 14800 I1000/I1106 16250 18600 I1200 20700...
Page 25: Installation On A Bin
Installation on a Bin An ice deflector is required for all bin installations and is included with all Manitowoc bins. Order the appropriate deflector kit (30" or 48") for any bin without a deflector.. Warning PERSONAL INJURY POTENTIAL Do not operate any ice machine with the deflector removed.
Page 26: Lineset Applications
Warning The 60-month compressor warranty (including the 36-month labor replacement warranty) will not apply if the Manitowoc Ice Machine, Condenser or QuietQube® Condensing Unit were not installed according to specifications. This warranty also will not apply if the refrigeration system is modified with a condenser, heat reclaim device, or other parts or assemblies not manufactured by Manitowoc Ice.
Page 27: Remote Condenser
REMOTE CONDENSER Remote Single Ice Machine Line Set* Circuit Condenser RT-20-R404A I0590N JC0495 RT-35-R404A RT-50-R404A I0690N RT-20-R404A I0696N JC0895 RT-35-R404A I0890N RT-50-R404A I0996N RT-20-R404A I1090N JC0995 RT-35-R404A I1196N RT-50-R404A I1490N RL-20-R404A I1496N JC1395 RL-35-R404A I1890N RL-50-R404A *Line Set Discharge Line Liquid Line 1/2"...
Page 28 Additional Refrigerant Charge For 51' to 100' Line Sets Ice Machine Condenser Additional Amount of Refrigerant To Be Added To Nameplate Charge I0590N JC0495 1.5 lbs - 680g I0690N JC0895 1.5 lbs - 680g I0696N JC0895 2 lbs - 907g I0890N JC0895 2 lbs - 907g...
Page 29: Calculating Allowable Lineset Distance
Calculating Allowable Lineset Distance Line Set Length The maximum length is 100' (30.5 m). Line Set Rise/Drop The maximum rise is 35' (10.7 m). The maximum drop is 15' (4.5 m). 35 FT. (10.7 M) MAXIMUM DISTANCE 35 ft. (10.7 m) Rise: The maximum distance the Condenser or Condensing Unit can be above the ice machine.
Page 30 Calculated Line Set Distance The maximum calculated distance is 150' (45.7 m). Line set rises, drops, horizontal runs (or combinations of these) in excess of the stated maximums will exceed compressor start-up and design limits. This will cause poor oil return to the compressor. Make the following calculations to make sure the line set layout is within specifications.
Page 31 Maximum Line Set Distance Formula Step 1 Measured Rise ____ X 1.7 = ______Calculated Rise (35 ft. Max) Step 2 Measured Drop ____ X 6.6 = ______Calculated Drop (15 ft. Max.) Step 3 Measured Horizontal Distance = _________Horizontal (100 ft. Max.) Distance Step 4 Total Calculated Distance = ________Total Calculated...
Page 32: Remote Ice Machine Usage With Non-Manitowoc
If the design of the condenser meets the specifications, Manitowoc’s only approval is for full warranty coverage to be extended to the Manitowoc manufactured part of the system. Since Manitowoc does not test the condenser in conjunction with the ice machine, Manitowoc will not endorse, recommend, or approve the condenser, and will not be responsible for its performance or reliability.
Page 33 Internal Condenser Volume The multi-circuit condenser internal volume must not be less than or exceed that used by Manitowoc (see chart on next page). Do not exceed internal volume and try to add charge to compensate, as compressor failure will result.
Page 34 The ice machine and line sets come with quick connect fittings. It is recommended that matching quick connects (available through Manitowoc Distributors) be installed in the multi-circuit condenser, and that a vapor “holding” charge, 5 oz. (150 ml), of proper refrigerant be added to the condenser prior to connection of the ice machine or line set to the condenser.
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Page 37: Maintenance
An extremely dirty ice machine must be taken apart for cleaning and sanitizing. Manitowoc Ice Machine Cleaner and Sanitizer are the only products approved for use in Manitowoc ice machines. Part Number STH025 11/16...
Page 38 Caution Use only Manitowoc approved Ice Machine Cleaner and Sanitizer for this application (Manitowoc Cleaner part number 9405463 and Manitowoc Sanitizer part number 9405653). It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.
Page 39: Cleaning/Sanitizing Procedure
CLEANING/SANITIZING PROCEDURE This procedure must be performed a minimum of once every six months. • The ice machine and bin must be disassembled cleaned and sanitized. • All ice produced during the cleaning and sanitizing procedures must be discarded. • Removes mineral deposits from areas or surfaces that are in direct contact with water.
Page 40: Cleaning / Sanitizing Procedure
Cleaning / Sanitizing Procedure Caution Use only Manitowoc approved Ice Machine Cleaner and Sanitizer for this application (Manitowoc Cleaner part number 94-0546-3 and Manitowoc Sanitizer part number 94-0565-3). It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.
Page 41 Step 1 Open the front door to access the evaporator compartment. Ice must not be on the evaporator during the clean/sanitize cycle. Follow one of the methods below: • Press the power switch at the end of a harvest cycle after ice falls from the evaporator(s).
Page 42 Step 4 Wait until the clean cycle is complete (approximately 24 minutes). Then disconnect power to the ice machine (and dispenser when used). Warning Disconnect the electric power to the ice machine at the electric service switch box. Step 5 Remove parts for cleaning.
Page 43: Sanitizing Procedure
Step 7 Use 1/2 of the cleaner/water mixture to clean all components. The cleaner solution will foam when it contacts lime scale and mineral deposits; once the foaming stops use a soft-bristle nylon brush, sponge or cloth (NOT a wire brush) to carefully clean the parts. Soak parts for 5 minutes (15 - 20 minutes for heavily scaled parts).
Page 44 Step 11 Use 1/2 of the sanitizer/water solution to sanitize all food zone surfaces of the ice machine and bin (or dispenser). Use a spray bottle to liberally apply the solution. When sanitizing, pay particular attention to the following areas: •...
Page 45 Step 15 Wait until the water trough refills and the display indicates add solution (approximately 1 minute). Add the proper amount of Manitowoc Ice Machine Sanitizer to the water trough by pouring between the water curtain and evaporator. Model Amount of Sanitizer...
Page 46: Parts Removal For Cleaning/Sanitizing
PARTS REMOVAL FOR CLEANING/SANITIZING O f f O n / O f f M o d e A. Remove the water curtain • Gently flex the curtain in the center and remove it from the right side. • Slide the left pin out. B.
Page 47 D. Remove the ice thickness probe • Compress the hinge pin on the top of the ice thickness probe. • Pivot the ice thickness probe to disengage one pin then the other. The ice thickness probe can be cleaned at this point without complete removal. If complete removal is desired, disconnect the ice thickness control wiring from the control board.
Page 48 Ice Thickness Probe & Water Level Probe Clean the probes using the following procedure. 1. Mix a solution of Manitowoc ice machine cleaner and water (2 ounces of cleaner to 16 ounces of water) in a container. 2. Clean all probe surfaces including all plastic parts (do not use abrasives).
Page 49 Water Inlet Valve The water inlet valve normally does not require removal for cleaning. Refer to “Water System Checklist” page 136, if you are troubleshooting water related problems. 1. When the ice machine is off, the water inlet valve must completely stop water flow into the machine. Watch for water flow.
Page 50 Water Dump Valve The water dump valve normally does not require removal for cleaning. To determine if removal is necessary: 1. Locate the water dump valve. 2. Press the power button and stop ice making. 3. While the ice machine is in the freeze mode, check the water trough to determine if the dump valve is leaking.
Page 51: Preventative Maintenance Cleaning Procedure
Preventative Maintenance Cleaning Procedure This procedure cleans all components in the water flow path, and is used to clean the ice machine between the bi-yearly cleaning/sanitizing procedure. Ice machine cleaner is used to remove lime scale and mineral deposits. Ice machine sanitizer disinfects and removes algae and slime.
Page 52 3. Press the Clean button. Water will flow through the water dump valve and down the drain. Wait until the water trough refills and the display indicates “Add Chemical” (approximately 1 minute), then add the proper amount of ice machine cleaner. Model Amount of Cleaner I0300/I0320/I0520...
Page 53: Removal From Service/Winterization
Removal from Service/Winterization General Special precautions must be taken if the ice machine is to be removed from service for an extended period of time or exposed to ambient temperatures of 32°F (0°C) or below. Caution If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result.
Page 54: Water-Cooled Ice Machines
WATER-COOLED ICE MACHINES 1. Perform steps 1-6 under “Self-Contained Air-Cooled Ice Machines. ” 2. Disconnect the incoming water and drain line from the water-cooled condenser. 3. Energize the ice machine in the freeze cycle. The increasing refrigerant pressure will open the water regulating valve.
Page 55: Operation
Operation Power Button Cleaning Button Manitowoc LCD Display Navigation Arrows Menu Checkmark Button Control Panel Features The control panel offers a series of pressure sensitive buttons and a four-line interactive display panel. BUTTONS Power Button: Powers the ice machine when in the On/ Off Mode.
Page 56: Display Panel
Menu Button: Accesses main menu structure. Moves the display from the Home Screen, where ice machine status, alerts and messages are viewed, to the Main Menu, where machine information and its event log can be accessed, machine and Energy Saver settings can be adjusted, and service issues can be addressed.
Page 57: Menu Navigation Overview
Menu Navigation Overview Menu Button ON/OFF Button Cleaning Button Timer Initiated Home Screen When When AuCS Clean Clean Alert Message Function Function Present Present Alerts Messages Main Menu Machine Energy Defaults Service Set-up EXIT Info Saver Password Entry Defaults Return to (Optional) Exit Home Screen...
Page 58: Display Panel Navigation
Display Panel Navigation [ L a n g u a g e > ] ▼ T i m e & D a t e > T i m e C o n f i g > U n i t s >...
Page 59 Cursor: A cursor (flashing rectangle) is used within lines where actual settings can be adjusted. In these screens, use the Up and Down arrows to make changes to the value underlined. Move the cursor from digit to digit using the Right and Left arrows. Use the Checkmark to move the cursor down one line.
Page 60: Alerts And Messages
Alerts and Messages When messages and alerts exist, they will be highlighted and can be selected with the Left arrow. Alerts displayed will have priority over messages. O f f O n / O f f M o d e [ <...
Page 61: Main Menu
Main Menu From the Home screen, press the Menu button to enter the Main menu, where you can choose to see machine information, make setup changes, set the Energy Saver mode, or enter the Service Menu. Machine Info Set-Up Energy Saver Factory Defaults Service Exit...
Page 62: Machine Info Menu
Machine Info Menu From the Main menu, ensure that Machine Info is highlighted and press the Checkmark to view a list including capacity, model number, IMH (Ice Machine Head) serial number, condenser serial number, warranty, installation date, date of manufacture and software version.
Page 63: Password Entry
Password Entry A password is not required, although a password can be turned on to prevent unauthorized control setting modification. You can use the Factory Default Password of “1234” or enter a four digit custom pin number of your choosing. To turn on the password feature use the following procedure.
Page 64 To enter a four digit password of your choosing use the following procedure. 1. Press the Menu button. 2. From the Main menu, use the Down arrow to highlight setup and press the Right arrow. 3. Use the Down arrow to select Edit Password and press the Right arrow.
Page 65: Reset Password To Factory Defaults
RESET PASSWORD TO FACTORY DEFAULTS The password can be reset to the factory defaults when required. The default factory password is 1234. The entire setup can be reset to the factory defaults. 1. From the Set-Up menu, use the Down arrow to highlight Fact Deflts.
Page 66: Set-Up Menu
Set-Up Menu From the Main menu, use the Down arrow to navigate to Set-Up and press the Checkmark. Select and customize machine settings on this menu. Press the Left arrow to return to previous screens. Set-Up Language Time & Date Time Configuration Units Ice Clarity...
Page 67: Language
LANGUAGE 1. From the Set-Up menu, use the Down arrow to highlight Language. 2. Press the Checkmark. You can choose to view the display in a language other than English, by highlighting your choice and pressing the Checkmark. Selecting one language will deselect the others.
Page 68 4. Press the Checkmark. The date will appear on the first line of the display (Mo/Day/Yr) and the time will appear on the second line (24 Hour). The month will have a blinking cursor. 5. Using the Up or Down arrow, adjust the month, if necessary.
Page 69: Time Configuration
TIME CONFIGURATION 1. From the Set-Up menu, use the Down arrow to highlight Time Config. 2. Press the Checkmark. On this screen, you can choose whether the date will be displayed as Mo/Day/Yr or Day/Mo/Yr by highlighting your choice and pressing the Checkmark.
Page 70: Ice Clarity
ICE CLARITY In areas with poor potable water quality, the ice machine may produce cloudier ice. Setting Ice Clarity to ON will add additional water during the freeze cycle to dilute the water that contains a high content of dissolved solids in the water trough.
Page 71: Password On
PASSWORD ON A password can be added to prevent unauthorized changes to ice machine settings. 1. From the Set-Up menu, use the Down arrow to highlight Password On. 2. Enter the password and press the Checkmark. 3. Press the Left arrow to return to previous screens and to the Set-Up menu.
Page 72: Iaucs Runtime
IAUCS RUNTIME Automatic Cleaning System is an optional accessory and will perform a cleaning cycle at a set time interval. 1. From the Set-Up menu, use the Down arrow to highlight AuCS RunTime. 2. Press the Checkmark. On this screen, you can choose to turn the feature ON or OFF by highlighting your choice and pressing the Checkmark.
Page 73: Water Filter
WATER FILTER The ice machine has a feature that displays a replace water filter reminder at a set time interval. 1. From the Set-Up menu, use the Down arrow to highlight Water Filter. 2. Press the Checkmark. You can record the filter type on this screen by highlighting Filter Type and pressing the Checkmark.
Page 74: Luminice® Reminder
LUMINICE® REMINDER The LuminIce® growth inhibitor recirculates the air in the ice machine foodzone over a UV bulb. This process will inhibit the growth of common micro-organisms on all exposed foodzone surfaces. The Bulb Minder is a feature that displays a reminder to change its bulb every 12 months.
Page 75: Ice Bin Level Sensor
ICE BIN LEVEL SENSOR Ice bin sensor is an optional accessory that allows the ice level in the bin to be set to one of three different levels. The bin level can be set seasonally to match usage, which results in lower energy costs and fresher ice. 1.
Page 76: Energy Saver Menu
Energy Saver Menu From the Main menu, use the Down arrow to navigate to Energy Saver and press the Checkmark. Set up an energy saving ice program, enable the Water Miser and view usage statistics from this menu. Press the Left arrow to return to previous screens.
Page 77: Ice Program
ICE PROGRAM To save energy and water, the ice machine can be programmed to only power up during time periods that the ice will be used or when the bin level is being depleted by heavy use. 1. In the Energy Saver menu, ensure that Ice Program is highlighted.
Page 78: Water Miser
WATER MISER Water Miser is a feature that depending on water quality can reduce water usage by eliminating flush cycles. 1. From the Energy Saver menu, use the Down arrow to highlight Water Miser. 2. Press the Checkmark. On this screen, you can choose to turn the Water Miser ON or OFF by highlighting your choice and pressing the Checkmark.
Page 79: Service Menu
Service Menu From the Main menu, use the Down arrow to navigate to Service and press the Checkmark. This menu is intended for the use of trained service personnel. Below is an overview of the service menu. The following pages list the navigation options available by drilling into the menus with the Right arrow.
Page 80 Part Number STH025 11/16...
Page 81: Data History
DATA HISTORY Press the Checkmark with Data History highlighted to view a list of eight-digit dates (Current, Current + 1 ... Current + 5), along with Lifetime (be sure to use the Down arrow to reveal all the available information). For each of the dates, use the Checkmark to view: •...
Page 82: Real Time Data
REAL TIME DATA Press the Checkmark with Real Time Data highlighted to get readings on Time & Temp, Inputs and Outputs (be sure to use the Down arrow to reveal all the available information). Use the Checkmark to view: Time and Temperature •...
Page 83 Outputs • Status Off/On - Displays stage of cycle • Water Pump Off/On • Hot Gas Valve 1 Off/On • Hot Gas Valve 2 Off/On • Air Pump Off/On • Water Valve Off/On • Dump Valve Off/On • Compressor Control Off/On •...
Page 84: Diagnostics
DIAGNOSTICS Press the Checkmark with Diagnostics highlighted to enter screens where you can run diagnostics on the control board, sensors and switches. Control Board • Self Check • Enable Relays • Exit Temperature Sensors • T1 Thermistor Temperature • T2 Thermistor Temperature •...
Page 85: Manual Harvest
MANUAL HARVEST Press the Checkmark with Manual Harvest highlighted to initiate a manual harvest. • Manual Harvest • Harvest Started • Exit REPLACE CONTROL BOARD Press the Checkmark with Replace Control Board highlighted to program the replacement control board. The data can copied from the defective control board (refer to “Exporting Data to a Flash Drive”...
Page 86: Event Log Menu
EVENT LOG MENU From the Service menu, use the Down arrow to navigate to Event Log and press the Checkmark. Ensure View ELog is highlighted and press the Checkmark to see the first event code, when it occurred and how many times.
Page 87: Event Log
EVENT LOG Refer to the following table for Event Code descriptions. Code Description Long Freeze Cycle Long Harvest Cycle Input Power Loss High Condenser Temperature High Pressure Control Opened Spare Starving TXV Single Evaporator or Low On Charge TXV Fault Single or Dual Circuit Evaporators Flooding Evaporator Fault Single Evaporator, Single Circuit Flooding Evaporator Fault Dual TXV, Dual Circuit...
Page 88 Part Number STH025 11/16...
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Page 91: Usb Flash Drive Specifications And Formatting
USB FLASH DRIVE SPECIFICATIONS AND FORMATTING Updating firmware on Indigo™ model ice machines requires a properly formatted 2 GB or smaller USB flash drive. All USB flash drives must be formatted before use to remove any software programs or files currently on the flash drive.
Page 92 Windows XP Computers: 1. Insert USB flash drive; your computer may indicate: • “Found New Hardware” follow the prompts to install the USB flash drive • USB flash drive may auto launch - Close auto launch window. 2. To access Disk Management: •...
Page 93: Upgrading Firmware With A Flash Drive
UPGRADING FIRMWARE WITH A FLASH DRIVE Important The flash drive must be formatted before using, All files and software on the flash drive are removed during the formatting process. Refer to page 95 USB Flash Drive Specifications and Formatting. 1. Drag and drop the files from website or email onto a flash drive.
Page 94 USB Connector Bin Switches Thermostat Display Light Micro Light Thermistors Clean Light Harvest Light SL-1 Light SL-2 Light Dump Valve Transformer Left Bin Switch Light Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 RT Harvest Bin LED Compressor Battery...
Page 95: Exporting Data To A Flash Drive
EXPORTING DATA TO A FLASH DRIVE Data can be copied from the control board memory to a flash drive and used to transfer setup and/or cycle data to a replacement control board or to transfer setup information to multiple ice machines. Data may also be requested by service department personnel for analysis or as an aid to troubleshooting.
Page 96 6. Press the Checkmark. USB Stick will appear highlighted.Press the Checkmark again. A submenu with Export ALL and Export Setup appears. NOTE: There are four files stored in ice machine memory: • Asset Data - ASDATAoo.CSV • Operating Data - OPDATAoo.CSV •...
Page 97: Operational Checks
Operational Checks GENERAL Manitowoc ice machines are factory-operated and adjusted before shipment. Normally, new installations do not require any adjustment. To ensure proper operation, always follow the Operational Checks: • when starting the ice machine for the first time •...
Page 98: Ice Thickness Check
ICE THICKNESS CHECK The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8 in. (3 mm). NOTE: Make sure the water curtain/splash shields are in place when performing this check. It prevents water from splashing out of the water trough. Remove the curtain to make an adjustment, then replace immediately after the adjustment is made.
Page 99 1/8" (3 mm) ICE BRIDGE THICKNESS PLACE 9/32" (7MM) DRILL BIT HERE TO SET INITIAL GAP Ice Thickness Check NOTE: Turning the adjustment 1/3 of a turn will change the ice thickness about 1/16” (1.5 mm). Part Number STH025 11/16...
Page 100 Control Board Timers The control board has the following non-adjustable timers: • The ice machine is locked into the freeze cycle for 6 minutes before a harvest cycle can be initiated. This can be overridden by initiating a manual harvest. Refer to “Manual Harvest”...
Page 101: Sequence Of Operation
Sequence of Operation SELF CONTAINED AIR OR WATER COOLED NOTE: The power button must be depressed and the water curtain/ice dampers must be in place on the evaporator before the ice machine will start. Initial Start-Up or Start-Up After Automatic Shut-Off 1.
Page 102 Freeze Sequence 3. Prechill The compressor is on for 30 seconds (120 seconds initial cycle) to lower the temperature of the evaporator(s) before the water pump is energized. The water fill valve will energize and remain on until water touches the low and high, water level probes.
Page 103 Harvest Sequence 5. Water Purge The air pump(s) (when used) and the harvest valve(s) open at the beginning of the water purge to divert hot refrigerant gas into the evaporator. The water pump(s) continues to run, and the water dump valve energizes to purge the water in the water trough.
Page 104 Automatic Shut-Off 7. Automatic Shut-Off When the storage bin is full at the end of a harvest sequence, the sheet of cubes fails to clear the water curtain/ice damper and will hold it open. After the water curtain/ice damper is held open for 30 seconds, the ice machine shuts off.
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Page 107: Remote Condenser
REMOTE CONDENSER NOTE: The power button must be depressed and the water curtain/ice dampers must be in place on the evaporator before the ice machine will start. Initial Start-Up or Start-Up After Automatic Shut-Off 1. Water Purge Before the compressor starts, the water pump and water dump solenoid are energized for 45 seconds, to completely purge the ice machine of old water.
Page 108 Freeze Sequence 3. Prechill The compressor is on for 30 seconds (120 seconds initial cycle) to lower the temperature of the evaporator(s) before the water pump is energized. The water fill valve will energize and remain on until water touches the low and high water level probes.
Page 109 Harvest Sequence 5. Water Purge The air pump (when used) the harvest valve(s) and harvest pressure regulating valve (HPR) energize to divert hot refrigerant gas to the evaporator. The water pump continues to run, and the water dump valve energizes to purge the water in the water trough. 6.
Page 110 Automatic Shut-Off 7. Automatic Shut-Off When the storage bin is full at the end of a harvest sequence, the sheet of cubes fails to clear the water curtain/ice damper and will hold it open. After the water curtain/ice damper is held open for 30 seconds, the ice machine shuts off.
Page 111: Energized Parts Chart Remote Models
Part Number STH025 11/16...
Page 112 Part Number STH025 11/16...
Page 113: Troubleshooting
Troubleshooting Safety Limits In addition to standard safety controls, the control board has built in safety limit controls which protect the ice machine from major component failures. Safety limits are stored and indicated by the control board. The number of cycles required to stop the ice machine varies for each safety limit.
Page 114: Safe Operation Mode
SAFE OPERATION MODE Allows the ice machine to operate up to 72 hours if the ice thickness probe (E19 fault) and/or water level probe sensors fail (E20 fault). • When the control board starts the safe mode an alert is flashed on the LCD display to notify the end-user they have a production problem.
Page 115: Water Thaw Cycle
WATER THAW CYCLE FIRMWARE VERSION 5.010 AND HIGHER When the damper/curtain does not open during the 7 minute harvest cycle the following water thaw cycle occurs: • 7 minutes - The compressor, harvest solenoid valve and dump valve de-energize. The water pump remains energized and the water inlet valve energizes until water touches the high water level probe.
Page 116: Analyzing Why A Safety Limit Stopped The Ice
Refrigeration and electrical component failures will cause a safety limit trip. Eliminate all electrical components and external causes first. If it appears that the refrigeration system is causing the problem, use Manitowoc’s Freeze Cycle Refrigeration System Operational Analysis Table, along with detailed charts, checklists, and other references to determine the cause.
Page 117 • Contactor not energizing • Compressor electrically non-operational • Defective fan cycling control • Defective fan motor Miscellaneous • Non-Manitowoc components • Improper refrigerant charge • Defective head pressure control • Defective harvest valve • Defective compressor • TXV starving or flooding (check bulb mounting) •...
Page 118: Safety Limit #2
Premature harvest - The control board initiates a harvest cycle when the high water level probe circuit is complete and the low water level probe is open. Refrigeration System • Non-Manitowoc components • Improper refrigerant charge • Defective head pressure control valve •...
Page 119: Troubleshooting By Symptom
Troubleshooting By Symptom The troubleshooting procedures follow flow charts. There are four symptoms, the symptom that you are experiencing will determine which flow chart to use. The flow chart asks yes and no questions to determine the problem. The flow chart will direct you to a procedure to correct the problem.
Page 120: Reset To Factory Defaults
RESET TO FACTORY DEFAULTS Before starting troubleshooting procedures, reset the control board to factory defaults to prevent mis-diagnosis. Before resetting to factory defaults do one of the following: Copy settings to a usb device and flash settings into the control board when diagnostics are complete.
Page 121: Symptom #1 Ice Machine Will Not Run
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Page 124 SYMPTOM #2 - LOW PRODUCTION, LONG FREEZE CYCLE Ice Machine has a Long Freeze Cycle. Ice Formation is Thick Thin on Inlet or Outlet of Evaporator Low Production How to Use the Freeze Cycle Refrigeration System Operational Analysis Table GENERAL These tables must be used with charts, checklists and other references to eliminate refrigeration components not listed on the tables and external items and problems...
Page 125: Before Beginning Service
Step 2 Enter Checkmarks (√). Each time the actual findings of an item in the “Operational Analysis” column matches the published findings on the table, enter a Checkmark. Example: Freeze cycle suction pressure is determined to be low. Enter a Checkmark in the “low” column. Step 3 Add the Checkmarks listed under each of the four columns.
Page 126: System Operational Analysis Tables
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Page 134 Ice Production Check The amount of ice a machine produces directly relates to the operating water and air temperatures. This means a condensing unit with a 70°F (21°C) outdoor ambient temperature and 50°F (10°C) water produces more ice than the same model condensing unit with a 90°F (32°C) outdoor ambient temperature and 70°F (21°C) water.
Page 135 • Another ice machine is required. • More storage capacity is required. • Relocating the existing equipment to lower the load conditions is required. Contact the local Manitowoc Distributor for information on available options and accessories. Part Number STH025 11/16...
Page 136 Installation/Visual Inspection Checklist Inadequate Clearances • Check all clearances on sides, back and top. Reference ”Clearance Requirements” on page 23 Ice machine is not level • Level the ice machine Condenser is dirty • Clean the condenser Water filtration is plugged (if used) •...
Page 137 Water System Checklist A water-related problem often causes the same symptoms as a refrigeration system component malfunction. Water system problems must be identified and eliminated prior to replacing refrigeration components. Water area (evaporator) is dirty • Clean as needed Water inlet pressure not between 20 and 80 psig (1-5 Bar, 138-552 kPa).
Page 138 Analyzing the ice formation pattern alone cannot diagnose an ice machine malfunction. However, when this analysis is used along with Manitowoc’s Freeze Cycle Refrigeration System Operational Analysis Tables, it can help diagnose an ice machine malfunction. Any number of problems can cause improper ice formation.
Page 139 2. Extremely Thin at Evaporator Outlet There is no ice, or a considerable lack of ice formation, at the outlet of the evaporator. Examples: No ice at all on the outlet half of the evaporator, but ice forms on the inlet half of the evaporator.
Page 140 One Evaporator, Two TXV 30” Models Tubing routing for one evaporator with two TXV’s is different. The evaporator has two inlets and outlets. Fill pattern varies depending on which circuit is affected, Extremely Thin at the Evaporator Outlet will first be visible either 1/4 or 3/4 of the way down the evaporator.
Page 141 One Evaporator, Two TXV 48” Models Tubing routing for one evaporator with two TXV’s is different. The evaporator has two inlets and outlets. Fill pattern varies depending on which circuit is affected, Extremely Thin at the Evaporator Outlet will first be visible 1/3 of the way down the evaporator.
Page 142 Analyzing Discharge Pressure in the Freeze Cycle 1. Determine the ice machine operating conditions: Air temp. entering condenser ______ Air temp. around ice machine ______ Water temp. entering sump trough ______ 2. Refer to Operating Pressure table (starting on page 223) for ice machine being checked.
Page 143 • Dirty/Defective water regulating valve • Water regulating valve out of adjustment Other • Overcharged • Non-condensable (air) in system • Wrong type of refrigerant • Non-Manitowoc components in system • High side refrigerant lines/component restricted Part Number STH025 11/16...
Page 144 “Fan Cycle Control” on page 187 Water Cooled Condensers • Water Regulating Valve out of adjustment • Water Regulating Valve Defective Other • Undercharged • Wrong type of refrigerant • Non-Manitowoc components in system • Liquid line/component restricted Part Number STH025 11/16...
Page 145 Analyzing Suction Pressure The suction pressure gradually drops throughout the freeze cycle. The actual suction pressure (and drop rate) changes as the air and water temperature entering the ice machine changes. These variables also determine the freeze cycle times. To analyze and identify the proper suction pressure drop throughout the freeze cycle, compare the published suction pressure to the published freeze cycle time.
Page 146 Pressure High Checklist” on page 143) • Wrong type of refrigerant • Non condensable in system Components • Harvest valve leaking • Harvest pressure solenoid valve leaking • TXV flooding • Defective compressor Other • Non-Manitowoc components in system Part Number STH025 11/16...
Page 147 Improper Refrigerant Charge • Undercharged • Wrong type of refrigerant Other • Non-Manitowoc components in system • Improper water supply over evaporator – refer to “Water System Checklist” on page 137 • Restricted/plugged liquid line drier • Restricted/plugged tubing in suction side or liquid line of refrigeration system •...
Page 148 The temperatures of the suction lines entering and leaving the evaporator alone cannot diagnose an ice machine. However, comparing these temperatures during the freeze cycle, along with using Manitowoc’s Freeze Cycle Refrigeration System Operational Analysis Table, can help diagnose an ice machine malfunction.
Page 149 The best way to diagnose a harvest valve is by using Manitowoc’s Ice Machine Freeze Cycle Refrigeration System Operational Analysis Table. Use the following procedures to determine if a harvest valve is remaining partially open during the freeze cycle.
Page 150 Findings Comments Normal Operation The inlet of the harvest valve is cool enough to touch and This is normal as the discharge the compressor discharge line line should always be too hot is hot. to touch and the harvest valve inlet, although too hot to Cool &...
Page 151 Discharge Line Temperature Analysis GENERAL Knowing if the discharge line temperature is increasing, decreasing or remaining constant can be an important diagnostic tool. Compressor discharge line temperature on a normally operating ice machine steadily increases throughout the freeze cycle. Ambient air temperatures affect the discharge line temperature.
Page 152 Water Regulating Valve Problem (Freeze Cycle) Valve not maintaining discharge pressure. • Valve incorrectly set, dirty or defective. Adjust valve to correct discharge pressure for your model (refer to cycle times/24 hour productions charts), clean or replace valve. Discharge pressure extremely high; Liquid line entering receiver feels hot.
Page 153 Final Analysis - Self-contained Air, Water & Remote Condenser Models The column with the highest number of Checkmarks identifies the refrigeration problem. COLUMN 1 - HARVEST VALVE LEAKING Replace the valve as required. COLUMN 2 - LOW CHARGE/TXV STARVING Normally, a starving expansion valve only affects the freeze cycle pressures, not the harvest cycle pressures.
Page 154 COLUMN 3 - TXV FLOODING OR REFRIGERANT OVERCHARGE A loose or improperly mounted expansion valve bulb causes the expansion valve to flood. Check bulb mounting, insulation, etc., before changing the valve. Verify refrigerant amount is correct by weighing recovered refrigerant before replacing a TXV. COLUMN 4 - COMPRESSOR Replace the compressor.
Page 155: Symptom #3 & #4 Harvest Problems
SYMPTOM #3 & #4 HARVEST PROBLEMS SELF-CONTAINED AIR, WATER & REMOTE CONDENSER MODELS Normal Ice Cube Melted Out ice Cube Definition of a harvest problem; At the end of a 3.5 minute harvest cycle the slab of ice is still contacting the evaporator.
Page 156: Cooled
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Page 158: Symptom #3 - Remote Condenser
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Page 163: Component Check Procedures
Component Check Procedures Electrical Components CONTROL BOARD, DISPLAY BOARD AND TOUCH PAD FUNCTION The control board, display board and touch pad provide user input and control the ice machine sequence of operation. NOTE: Anytime power is supplied to wires #55 & #56 on the control board, the “Display”...
Page 164: Control Board Diagnostics
Control Board Diagnostics 1. Micro light is not flashing a heartbeat. 2. Disconnect line voltage power supply to the ice machine and wait a minimum of 15 seconds, then reapply power. Micro light flashes - continue with step 3. Micro light is off - Replace control board. 3.
Page 165 Touch Pad Diagnostics Follow the control board diagnostics to “Status Passed”. Perform the following keystrokes on the display. • Display reads Status Passed, press the right arrow • Display reads Pass Yes, press the right arrow • Display reads Key Pad Test, press the right arrow 4.
Page 166: Control Board Relay Test
CONTROL BOARD RELAY TEST The control board can be set to energize all relays for 3.5 minutes. This allows testing to verify control board relays are closed and line voltage is available for ice machine components - Water pump, dump valve, water inlet valve, harvest valve(s), air compressor(s), contactor/compressor/ fan motor - The fan cycle control must close to energize the fan motor.
Page 167: Programming A Replacement Control Board
PROGRAMMING A REPLACEMENT CONTROL BOARD Indigo™ replacement control boards require the Model number to be entered to activate the appropriate look up tables for operation and diagnostic. This can be done two different ways, USB Setup or Manual Setup. USB Setup - Applicable when the control board is operational and has a mechanical issue such as a sticking relay.
Page 168 5. Scroll down until brackets are in the space below “Input Model #”. Press the right arrow to activate the blinking cursor, then use the up/down arrows to select the first character in the model number. Use the right arrow to move to the next space. Add characters in this manner until the model number is complete.
Page 169: Main Fuse
MAIN FUSE FUNCTION The control board fuse stops ice machine operation if electrical components fail, causing high amp draw. SPECIFICATIONS The main fuse is 250 Volt, 8 amp. Warning High (line) voltage is applied to the control board (terminals #55 and #56) at all times. Removing the control board fuse or pressing the On/Off button will not remove the power supplied to the control board.
Page 170: Bin Switch
BIN SWITCH FUNCTION Movement of the water curtain/ice dampers control bin switch operation. The bin switch has two main functions: 1. Terminating the Harvest cycle and returning the ice machine to the Freeze cycle. This occurs when the bin switch is opened and closed again within 30 seconds during the Harvest cycle.
Page 171 Diagnostics SYMPTOMS Bin Switch Fails Open G Model control boards or E Model control boards with firmware version Rev.2.047 or higher. • The ice machine will not start an ice making cycle and the display indicates “Full Bin”. • The ice machine displays “Full Bin Remove Ice” in the clean cycle.
Page 172 DIAGNOSTICS 1. Verify bin switch, curtain/damper and curtain/ damper magnet are in place. • Press the Menu button. • Scroll down to Service and press right arrow. • Scroll down to Diagnostics and press right arrow • Scroll down to Inputs and press right arrow to display curtain switch readings (Curt SW1, Curt SW2, etc).
Page 173: Water Level Control Circuitry
WATER LEVEL CONTROL CIRCUITRY FUNCTION The water level probe controls the water level by sensing whether water is or is not contacting the water level probe. The water level probe has three sensing probes. Two probes are equal in length and are used to measures conductivity for diagnostics, ice clarity and water miser options.
Page 174 Prechill & Freeze Cycle Operation The water inlet valve energizes and de-energizes in conjunction with the water level probe located in the water trough. • The water inlet valve is ON when there is no water in contact with the water level probes. •...
Page 175 Diagnostics SYMPTOMS • Water trough overfills • Water trough will not fill NOTE: The ice machine will initiate a premature harvest if the high water level probe circuit is complete and the low water level probe is open. WATER TROUGH OVERFILLING DURING THE FREEZE CYCLE Step 1 Press the power button and turn off the ice...
Page 176 Step 5 Disconnect the water level probe wiring harness from the control board and ohm harness and water level probe. Normal readings will show no resistance. Black White Short Probe Ohm water Level Probe and Wiring Harness Part Number STH025 11/16...
Page 177 Step 6 When all ohm tests are normal, replace the control board. When any measurement fails, disconnect the wiring harness from the water level probe and ohm the water level probe with the wiring harness removed from the circuit. Results will determine whether the wiring harness or probe will need replacement.
Page 178 WATER TROUGH WILL NOT FILL Step 1 Verify water is supplied to the ice machine. Step 2 Scroll to Service/Diagnostics/Inputs and press down arrow until Wtr Low and Wtr High are displayed. Yes is displayed - Control board is receiving a sensing water signal.
Page 179: Ice Thickness Probe (Initiates Harvest)
ICE THICKNESS PROBE (INITIATES HARVEST) FUNCTION The ice thickness probe senses ice on the evaporator and signals the control board to start a harvest cycle. SPECIFICATIONS Freeze Time Lock-In Feature The ice machine control system incorporates a 6 minute freeze time lock-in feature. This prevents the ice machine from short cycling in and out of harvest.
Page 180 Ice Thickness Check The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8 in. (3 mm). NOTE: Make sure the water curtain/splash shields are in place when performing this check. It prevents water from splashing out of the water trough. Remove the curtain to make an adjustment, then replace immediately after the adjustment is made.
Page 181 Diagnostics ICE MACHINE CYCLES INTO HARVEST BEFORE ICE CONTACTS THE ICE THICKNESS PROBE Premature harvest symptoms • Low ice production • Thin ice in bin • Freeze cycles are faster than published cycle times 1. Turn off power and inspect ice thickness probe for physical damage.
Page 182 5. Ohm Ice Thickness Probe NOTE: Verify meter leads are properly connected to VOM with the red meter lead connected to positive & the black meter lead connected to negative. Lead tips must be needle style to make contact with the terminal.
Page 183 ICE MACHINE DOES NOT CYCLE INTO HARVEST Will not harvest symptoms • Low ice production • Thick ice in bin • Large sheet of ice on evaporator • Harvest cycle doesn’t start • Freeze cycles are longer than published cycle times If ice is on the evaporator initiate a manual harvest cycle by performing the following keystrokes.
Page 184: High Pressure Cutout (Hpco) Control
HIGH PRESSURE CUTOUT (HPCO) CONTROL FUNCTION Stops the ice machine if subjected to excessive high-side pressure. The HPCO control is normally closed, and opens on a rise in discharge pressure. SPECIFICATIONS Specifications Cut-Out Cut-In 450 psig ±7 300 psig ±10 (3102 kPa ±48 31 bar ±.48) (2068 kPa 20.68 bar) Automatic Reset...
Page 185 CHECK PROCEDURE Symptom #1 Machine is off and the display indicates “Delay xx min, HPCO Active”. 1. Leave all wiring connectors attached and perform testing within the 60 minute time delay period 2. Check for line voltage at P9 connector on control board (Two wire connector adjacent to 9 pin connector).
Page 186 Symptom #2 Machine is running and the display has a flashing alert triangle and indicates “HPC Fault” after the left arrow is pressed 1. Navigate to the event log on the Service menu. Scroll down to HPC Fault EO5. Open the event and view when and how often HPCO Fault has occurred.
Page 187: Fan Cycle Control
FAN CYCLE CONTROL FUNCTION Cycles the fan motor on and off to maintain proper operating discharge pressure. The fan cycle control closes on an increase, and opens on a decrease in discharge pressure. SPECIFICATIONS Specifications Model Cut-In (Close) Cut-Out (Open) I0300 / I0320 I0520 250 ±5 200 ±5...
Page 188: Thermistors
THERMISTORS FUNCTION Thermistor resistance values change with temperature. The value supplied to the control board is used to identify temperature at the thermistor location. SPECIFICATIONS Temperature of Resistance Thermistor °C °F K Ohms (x 1000) -30° - -20° -22° - -4° 820.85 - 466.35 -20°...
Page 189 Thermistor Matrix Four thermistors are located on the ice machine. They are labeled T1, T2, T3, T4. Part Number STH025 11/16...
Page 190 SYMPTOM Alert icon on the display is flashing and the alert indicates a T1, T2, T3, or T4 Fault. CHECK PROCEDURE • Press the Menu button. • Scroll down to Service and press right arrow. • Scroll down to Diagnostics and press right arrow •...
Page 191: Harvest Assist Air Pump
HARVEST ASSIST AIR PUMP FUNCTION The air pump helps break the vacuum between the sheet of ice and the evaporator which results in shorter harvest cycles. SPECIFICATIONS 115 Volt or 230 Volt - matches the ice machine voltage. CHECK PROCEDURE 1.
Page 192: Compressor Electrical Diagnostics
COMPRESSOR ELECTRICAL DIAGNOSTICS The compressor does not start or will trip repeatedly on overload. Check Resistance (Ohm) Values NOTE: Compressor windings can have very low ohm values. Use a properly calibrated meter. Perform the resistance test after the compressor cools. The compressor dome should be cool enough to touch (below 120°F/49°C) to assure that the overload is closed and the resistance readings will be accurate.
Page 193 CHECK MOTOR WINDINGS TO GROUND Check continuity between all three terminals and the compressor shell or copper refrigeration line. Scrape metal surface to get good contact. If continuity is present, the compressor windings are grounded and the compressor should be replaced. COMPRESSOR DRAWING LOCKED ROTOR To determine if the compressor is seized, check the amp draw while the compressor is trying to start.
Page 194: Diagnosing Start Components
DIAGNOSING START COMPONENTS If the compressor attempts to start, or hums and trips the overload protector, check the start components before replacing the compressor. Capacitor Visual evidence of capacitor failure can include a bulged terminal end or a ruptured membrane. Do not assume a capacitor is good if no visual evidence is present.
Page 195 PTCR The PTCR allows current to flow through the start winding at compressor startup. Current flow heats the ceramic discs in the PTCR. The electrical resistance increases with temperature and stops all except a trickle of current flow through the start winding. The small flow of current keeps the PTCR hot (260°F/127°C) and the start winding out of the circuit.
Page 196 PTCR Operation Check 1. Visually inspect the PTCR. Check for signs of physical damage. NOTE: The PTCR case temperature may reach 210°F (100°C) while the compressor is running. This is normal. Do not change a PTCR just because it is hot. 2.
Page 197: Refrigeration Components
Refrigeration Components HEAD PRESSURE CONTROL VALVE Manitowoc remote systems require head pressure control valves with special settings. Replace defective head pressure control valves only with “original” Manitowoc replacement parts. Refrigerant Charge Verification The correct amount of refrigerant (name plate charge) is required to operate correctly at all ambient conditions.
Page 198 Freeze Cycle Operation All Models The R404A head pressure control valve is non adjustable. At ambient temperatures of approximately 70°F (21°C) or above, refrigerant flows through the valve from the condenser to the receiver inlet. At temperatures below this (or at higher temperatures if it is raining), the head pressure control dome’s nitrogen charge closes the condenser port and opens the bypass port from the compressor discharge line.
Page 199 NOTE: A head pressure control valve that will not bypass, will function properly with condenser air temperatures of approximately 70°F (21°C) or above. When the temperature drops below 70°F (21°C), the head pressure control valve fails to bypass and the ice machine malfunctions.
Page 200 Harvest Cycle REMOTE CONDENSER The head pressure control cycles into full bypass due to the pressure drop when the harvest valve opens. Refrigerant flows from the compressor to the evaporator through the harvest valve and the head pressure valve is out of the circuit.
Page 201: Harvest Pressure Regulating (Hpr) System
HARVEST PRESSURE REGULATING (HPR) SYSTEM REMOTE CONDENSER ONLY GENERAL The harvest pressure regulating (HPR) system includes: • Harvest pressure regulating solenoid valve (HPR solenoid). This is an electrically operated valve which opens when energized, and closes when de-energized. • Harvest pressure regulating valve (HPR valve). This is a pressure regulating valve which modulates open and closed, based on the refrigerant pressure at the outlet of the valve.
Page 202: Diagnostic Procedure
HPR DIAGNOSTICS Steps 1 through 5 can be quickly verified without attaching a manifold gauge set or thermometer. All questions must have a yes answer to continue the diagnostic procedure. 1. Liquid line warm? (Body temperature is normal) If liquid line is cooler than body temperature, refer to “Head Pressure Control Valve”...
Page 203 5. Discharge line temperature is greater than 150°F (66°C) [I0850/I1000 Air/Water Only - 140°F (60°C)] at the end of the freeze cycle? See “Discharge Line Temperature Analysis” on page 151 6. Connect refrigeration manifold gauge set to the access valves on the front of the ice machine. Establish baseline by recording suction and discharge pressure and freeze &...
Page 204: Water Regulating Valve
WATER REGULATING VALVE Water-Cooled Models Only FUNCTION The water regulating valve maintains the freeze cycle discharge pressure. CHECK PROCEDURE 1. Determine if the head pressure is high or low (refer to cycle time/24 hour ice production and operational pressure chart for the model you are servicing). 2.
Page 205: Refrigerant Recovery/Evacuation
Important Replace the liquid line drier after recovering the refrigerant and before evacuating and recharging. Use only a Manitowoc (OEM) liquid line filter-drier to prevent voiding the warranty. Connections Manifold gauge sets must utilize low loss fittings to comply with U.S.
Page 206 Self-Contained Recovery/Evacuation 1. Press the power button and cycle the ice machine off. 2. Install manifold gauges, scale and recovery unit or two-stage vacuum pump and open high and low side on manifold gauges. MANIFOLD SET OPEN OPEN LOW SIDE HIGH SIDE ACCESS ACCESS...
Page 207 Self-Contained Charging Procedures Important The charge is critical on all Manitowoc ice machines. Use a scale to ensure the proper charge is installed. 1. Be sure the ice machine is off. MANIFOLD SET CLOSED OPEN LOW SIDE HIGH SIDE ACCESS...
Page 208 2. Close the vacuum pump valve, the low side service valve, and the low side manifold gauge valve. 3. Open the high side manifold gauge valve. 4. Open the charging cylinder and add the proper refrigerant charge (shown on nameplate) through the discharge service valve.
Page 209: Remote Condenser Model Procedure
Important Replace the liquid line drier after recovering the refrigerant and before evacuating and recharging. Use only a Manitowoc (O.E.M.) liquid line filter drier to prevent voiding the warranty. Part Number STH025 11/16...
Page 210 NOTE: Manitowoc recommends using an access valve core removal and installation tool on the discharge line quick-connect fitting. This permits access valve core removal.
Page 211 REMOTE CONDENSER RECOVERY/EVACUATION 1. Press the power button to stop the ice machine. 2. Install manifold gauges, scale and recovery unit or two-stage vacuum pump. 3. Open high and low side on the manifold gauge set. 4. Perform recovery or evacuation: Recovery: Operate the recovery unit as directed by the manufacturer’s instructions.
Page 212 ACCESS REMOTE RECOVERY/EVACUATION CONNECTIONS Part Number STH025 11/16...
Page 213 Remote Charging Procedures 1. Close the vacuum pump valve and the low side manifold gauge valve. 2. Open the refrigerant cylinder and add the proper refrigerant charge (shown on nameplate) into the system high side (receiver outlet valve and discharge lines quick-connect fitting).
Page 214 HEAT EXCHANGER EVAPORATOR EXPANSION VALVE SOLENOID VALVE LOW SIDE ACCESS VALVE STRAINER COMPRESSOR HARVEST PRESSURE HARVEST CHECK SOLENOID PRESSURE VALVE VALVE REGULATING VALVE HIGH SIDE LIQUID ACCESS VALVE LINE SOLENOID DISCHARGE LINE DRIER QUICK CONNECT SCHRAEDER FITTING REMOTE CONDENSER RECEIVER ACCESS VALVE CHECK VALVE HEAD PRESSURE...
Page 215: System Contamination Clean-Up
This section describes the basic requirements for restoring contaminated systems to reliable service. Important Manitowoc Ice assumes no responsibility for the use of contaminated refrigerant. Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company.
Page 216 Contamination Cleanup Chart Symptoms/Findings Required Cleanup Procedure No symptoms or suspicion of Normal evacuation/recharging contamination procedure Moisture/Air Contamination symptoms Refrigeration system open to atmosphere for longer than 15 minutes Refrigeration test kit and/ Mild contamination cleanup or acid oil test shows procedure contamination Leak in water cooled...
Page 217: Cleanup Procedure
CLEANUP PROCEDURE Mild System Contamination 1. Replace any failed components. 2. If the compressor is good, change the oil. 3. Replace the liquid line drier. NOTE: If the contamination is from moisture, use heat lamps during evacuation. Position them at the compressor, condenser and evaporator prior to evacuation.
Page 218 Severe System Contamination 1. Remove the refrigerant charge. 2. Remove the compressor and inspect the refrigeration lines. If burnout deposits are found, install a new harvest valve, replace the manifold strainer, TXV and harvest pressure regulating valve. 3. Wipe away any burnout deposits from suction and discharge lines at compressor.
Page 219 9. Follow the normal evacuation procedure, except replace the evacuation step with the following: Pull vacuum to 1000 microns. Break the vacuum with dry nitrogen and sweep the system. Pressurize to a minimum of 5 psig (35 kPa,.35 bar). Change the vacuum pump oil. Pull vacuum to 500 microns.
Page 220: Replacing Pressure Controls Without
REPLACING PRESSURE CONTROLS WITHOUT REMOVING REFRIGERANT CHARGE This procedure reduces repair time and cost. Use it when any of the following components require replacement, and the refrigeration system is operational and leak-free. • Fan cycle control (air cooled only) • Water regulating valve (water cooled only) •...
Page 221: Liquid Line Filter-Driers
The filter-driers used on Manitowoc ice machines are manufactured to Manitowoc specifications. The difference between a Manitowoc drier and an off-the-shelf drier is in filtration. A Manitowoc drier has dirt-retaining filtration, with fiberglass filters on both the inlet and outlet ends. This is very important because ice machines have a back-flushing action that takes place during every Harvest cycle.
Page 222: Total System Refrigerant Charge
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Page 225: Cycle Times/24-Hour Ice Production/ Refrigerant
Charts Cycle Times/24-Hour Ice Production/ Refrigerant Pressure Charts These charts are used as guidelines to verify correct ice machine operation. Accurate collection of data is essential to obtain the correct diagnosis. • Production and cycle times are for dice cube - Half dice cube cycle times can be 2 - 3 minutes faster, depending on model and ambient temperature.
Page 226: I0300 Series
I0300 SERIES I0300A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 9.6-11.5 10.8-12.9 12.3-14.6 80/27...
Page 227 I0300W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 10.0-11.9 11.1-13.2 12.3-14.6 80/27 10.2-12.2...
Page 228: I0320 Series
I0320 SERIES I0320A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 13.1-15.2 15.7-18.2 16.6-19.3 80/27...
Page 229 I0320W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 13.3-15.5 15.4-17.9 16.6-19.3 80/27 13.8-16.1...
Page 230: I0450 Series
I0450 SERIES I0450A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 10.2-11.9 11.1-12.9 12.1-14.1 80/27...
Page 231 I0450W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 9.9-11.6 11.1-12.9 12.1-14.1 80/27 10.2-11.9...
Page 232: I0500 Series
I0500 SERIES I0500A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 11.0-12.6 12.9-14.8 14.3-16.3 80/27...
Page 233 I0500W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 10.5-12.1 13.2-15.1 15.3-17.5 80/27 11.9-13.6...
Page 234 I0500N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20/-29 to 12.3-14.1 12.7-14.7 13.7-15.8 70/21...
Page 235: I0520 Series
I0520 SERIES I0520A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 8.8-10.3 10.2-11.9 11.7-13.7 80/27...
Page 236 I0520W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 9.1-10.7 10.9-12.7 11.7-13.7 80/27 9.4-11.0...
Page 237: I0600 Series
I0600 SERIES I0600A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 7.6-9.0 9.5-11.2 10.2-12.0 80/27...
Page 238 I0600W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 7.6-9.0 9.0-10.6 9.7-11.4 80/27 8.8-10.4...
Page 239 I0600N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20/-29 to 7.9-9.4 9.9-11.7 10.5-12.3 70/21...
Page 240 I0606A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 7.6-9.0 9.5-11.2 10.2-12.0 80/27 8.8-10.4 9.9-11.7...
Page 241 I0606W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 7.6-9.0 9.0-10.6 9.7-11.4 80/27 8.8-10.4...
Page 242 I0606N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20/-29 to 7.9-9.4 9.9-11.7 10.5-12.3 70/21...
Page 243: I0850 Series
I0850 SERIES I0850A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 9.0-10.4 9.8-11.2 10.5-12.1 80/27...
Page 244 I0850W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 8.4-9.7 9.5-10.9 10.7-12.3 80/27 8.7-10.1...
Page 245 I0850N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20/-29 to 95-11.0 11.0-12.6 12.0-13.7 70/21...
Page 246: I0906 Series
I0906 SERIES I0906A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 8.7-10.3 10.2-12.1 10.8-12.8 80/27...
Page 247 I0906W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 9.1-10.8 10.3-12.2 10.9-12.9 80/27 10.2-12.1...
Page 248 I0906N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20/-29 to 9.4-11.1 10.2-12.1 11.0-12.9 70/21...
Page 249: I1000 Series
I1000 SERIES I1000A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 7.5-9.0 8.2-9.8 8.8-10.4 80/27...
Page 250 I1000W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 7.4-8.9 8.5-10.1 9.4-11.1 90/32 7.8-9.3...
Page 251 I1000N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 7.7-9.2 8.6-10.3 9.5-11.3 80/27 8.5-10.1...
Page 252: I1106 Series
I1106 SERIES I1106A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 7.5-9.0 8.2-9.8 8.8-10.4 80/27...
Page 253 I1106W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 7.4-8.9 8.5-10.1 9.4-11.1 90/32 7.8-9.3...
Page 254 I1106N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 7.7-9.2 8.6-10.3 9.5-11.3 80/27 8.5-10.1...
Page 255: I1200 Series
I1200 SERIES I1200A Self-Contained Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 8.3-9.2 8.9-9.9 9.7-10.7...
Page 256 I1200W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 7.8-8.6 8.8-9.7 10.1-11.1 80/27 8.9-9.9...
Page 257: I1400 Series
I1400 SERIES I1400A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 8.3-9.5 9.1-10.4 10.2-11.6 80/27...
Page 258 I1400W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 8.2-9.4 9.9-11.3 10.5-12.0 80/27 8.3-9.5...
Page 259 I1400N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 8.8-10.1 9.9-11.3 10.9-12.3 80/27 9.0-10.2...
Page 260: I1406 Series
I1406 SERIES I1406A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 11.0-12.6 12.1-14.0 13.2-14.6 80/27...
Page 261 I1406W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 11.0-12.9 12.1-14.2 13.3-14.6 80/27 11.2-13.2...
Page 262 I1406N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 12.3-14.1 12.7-14.7 13.7-15.8 80/27 12.3-14.2...
Page 263: I1800 Series
I1800 SERIES I1800A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 8.8-10.1 9.6-11.0 10.5-11.9 80/27...
Page 264 I1800W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 70/21 8.8-10.0 9.8-11.2 11.0-12.5 80/27 8.9-10.2...
Page 265 I1800N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 70/21 9.2-10.5 10.1-11.5 10.0-12.4 80/27 9.6-11.0...
Page 266 THIS PAGE INTENTIONALLY LEFT BLANK Part Number STH025 11/16...
Page 267: Wiring Diagrams
Diagrams Wiring Diagrams The following pages contain electrical wiring diagrams. Be sure you are referring to the correct diagram for the ice machine you are servicing. Warning Always disconnect power before working on electrical circuitry. Some components are wired differently on energy efficient machines.
Page 268: I0300/I0450/I0500/I0520 - 1Ph Air/Water
I0300/I0450/I0500/I0520 - 1PH AIR/WATER Self Contained Air & Water-cooled 000007346_12 Part Number STH025 11/16...
Page 269: I0320 - 1Ph Air/Water
I0320 - 1PH AIR/WATER Self Contained Air & Water-cooled Part Number STH025 11/16...
Page 270: I0500 - 1Ph Remote
I0500 - 1PH REMOTE Remote Air-cooled 000007405_06 Part Number STH025 11/16...
Page 271: 1Ph Air/Water
I0600/I0606/I0850/I0906/I1000/I1106/I1200 - 1PH AIR/WATER Self Contained Air & Water-cooled 000007604_07 Part Number STH025 11/16...
Page 272: 3Ph Air/Water
I0600/I606/I0850/I906/I1000/I1106/I1200 - 3PH AIR/ WATER Self Contained Air & Water-cooled 000007604_07 Part Number STH025 11/16...
Page 273: Remote
I0600/I606/I0850/I0906/I1000/I1106 - 1PH REMOTE Remote Condenser Air-cooled 000007606_09 Part Number STH025 11/16...
Page 274: Remote
I0600/I606/I0850/I0906/I1000/I1106 - 3PH REMOTE Remote Condenser Air-cooled 000007606_09 Part Number STH025 11/16...
Page 275: I1400/I1406/I1800 - 1Ph Air/Water
I1400/I1406/I1800 - 1PH AIR/WATER Self Contained Air & Water-cooled 000008865_02 Part Number STH025 11/16...
Page 276: I1400/I1406/I1800 - 3Ph Air/Water
I1400/I1406/I1800 - 3PH AIR/WATER Self Contained Air & Water-cooled 000008865_02 Part Number STH025 11/16...
Page 277: I1400/Ii1406/1800 1Ph Remote
I1400/II1406/1800 1PH REMOTE Remote Condenser 000008864_04 Part Number STH025 11/16...
Page 278: I1400/I1406/I1800 - 3Ph Remote
I1400/I1406/I1800 - 3PH REMOTE Remote Condenser 000008864_04 Part Number STH025 11/16...
Page 279: I1400 Ecm Fan Motor - 1Ph Air
I1400 ECM FAN MOTOR - 1PH AIR Self Contained Air-cooled 000013616 Rev 03 Part Number STH025 11/16...
Page 280: I1400 Ecm Fan Motor - 3Ph Air
I1400 ECM FAN MOTOR - 3PH AIR Self Contained Air-cooled 000013616 Rev 03 Part Number STH025 11/16...
Page 281: Electrical Noise Filter
ELECTRICAL NOISE FILTER Filter is installed to the incoming line voltage power supply on Korean models. CONTROL BOX JUNCTION BOX CONTROL FILTER Part Number STH025 11/16...
Page 282: Electronic Control Board
Electronic Control Board Thermostat Bin Switches Display Light Micro Light Thermistors Clean Light Harvest Light SL-1 Light SL-2 Light Dump Valve Transformer Left Bin Switch Light Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 RT Harvest Bin LED Compressor...
Page 283: Refrigeration Tubing Schematics
Refrigeration Tubing Schematics SELF-CONTAINED AIR OR WATER-COOLED I0300/I0320/I0520/I0450/I0500/I0600/I606/I0850/ I0906/I1000/I1200 T 4 T h e r m i s t o r E VA P O R ATO R H E AT E X C H A N G E R EXPANSION VALVE T 3 T h e r m i s t o r...
Page 284 II1400/I1406/I1800 T3 Thermistor T4 Thermistor HEAT EXCHANGER EXPANSION EXPANSION VALVE VALVE EVAPORATOR HARVEST HARVEST SOLENOID VALVE SOLENOID VALVE COMPRESSOR STRAINER DRIER T2 Thermistor RECEIVER CONDENSER T1 Thermistor Part Number STH025 11/16...
Page 285: Remote Condenser Models
REMOTE CONDENSER MODELS I0500/I0600/I0606/I0850/I1000 T4 Thermistor EVAPORATOR HEAT EXCHANGER EXPANSION VALVE T3 Thermistor STRAINER COMPRESSOR HOT GAS SOLENOID VALVE CHECK VALVE REMOTE CONDENSER T2 Thermistor LIQUID LINE SOLENOID VALVE HARVEST PRESSURE HEAD REGULATING VALVE PRESSURE CONTROL DRIER VALVE T1 Thermistor H.P.R.
Page 286 I1106 T4 Thermistor HEAT EXCHANGER EXPANSION VALVES EVAPORATOR T3 Thermistor HARVEST SOLENOID VALVES LLSV STRAINER COMPRESSOR CHECK VALVE DRIER T2 Thermistor CHECK VALVE HPR SOLENOID VALVE HPR VALVE T1 Thermistor HEAD REMOTE RECEIVER PRESSURE CONDENSER ACCESS CONTROL VALVE VALVE RECEIVER Part Number STH025 11/16...
Page 287 I1400/I1406/I1800 T4 Thermistor T3 Thermistor HEAT EXCHANGER EXPANSION EXPANSION VALVE VALVE EVAPORATOR HARVEST HARVEST SOLENOID VALVE LLSV SOLENOID VALVE COMPRESSOR STRAINER DRIER CHECK VALVE HPR VALVE CHECK VALVE HEAD REMOTE RECEIVER PRESSURE CONDENSER ACCESS CONTROL VALVE VALVE T1 Thermistor T2 Thermistor RECEIVER Part Number STH025 11/16...
Page 288 THIS PAGE INTENTIONALLY LEFT BLANK Part Number STH025 11/16...
Page 289 THIS PAGE INTENTIONALLY LEFT BLANK Part Number STH025 11/16...
Page 296 To learn how Manitowoc Foodservice and its leading brands can equip you, visit our web site at www.manitowocfoodservice.com, then discover the regional or local resources available to you. ©2015 Manitowoc Foodservice except where explicitly stated otherwise. All rights reserved. Part Number STH025 11/16...

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Indigo id0302a Indigo iy0305w Indigo iy0304a Indigo id0322a Indigo id0303w Indigo iy0324a ... Show all

Manitowoc indigo series Technician's Handbook

General Information

How to Read a Model Number

Ice Cube Sizes

Model/Serial Number Location

Model Numbers

Ice Machine Warranty Information

Luminice® II

Installation

Location of Ice Machine

Clearance Requirements

Ice Machine Heat of Rejection

Installation on a bin

Ice Machine on a Dispenser Installation

Lineset Applications

Remote Ice Machine Usage with Non-Manitowoc

Multi-Circuit Condensers

Maintenance

Cleaning and Sanitizing

Cleaning / Sanitizing Procedure

Preventative Maintenance Cleaning Procedure

Removal from Service/Winterization

Operation

Control Panel Features

Menu Navigation Overview

Display Panel Navigation

Alerts and Messages

Main Menu

Machine Info Menu

Password Entry

Set-Up Menu

Energy Saver Menu

Service Menu

Operational Checks

Sequence of Operation

Troubleshooting

Safety Limits

Troubleshooting by Symptom

Component Check Procedures

Electrical Components

Refrigeration Components

Refrigerant Recovery/Evacuation

System Contamination Clean-Up

Cycle Times/24-Hour Ice Production/ Refrigerant

Pressure Charts

Wiring Diagrams

1 Ph Air/Water

3 Ph Air/Water

Electronic Control Board

Refrigeration Tubing Schematics

Quick Links

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for Manitowoc indigo series